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. 2013 Oct 8;3:2870. doi: 10.1038/srep02870

Figure 3. Photoelectric response of LAO/STO.

Figure 3

(a), (b) Temporal evolution of photocurrent excited by 325 nm laser at 300 K and 10 K, respectively. (c), (d) Photocurrent response with excitation by 514 nm laser at 300 K and 10 K, respectively. Insets are photoresponse of bare STO for comparison. The 325 nm and 514 nm laser powers are 17 μW and 3.7 mW, respectively. The illumination spot size is ~ 10 μm in diameter. Voltage bias is 0.2 V for all LAO/STO measurements, while 1 V and 5 V for bare STO with illumination of 325 nm and 514 nm lasers, respectively.